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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:47:33,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:47:33,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:47:33,676 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:47:33,677 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:47:33,680 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:47:33,681 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:47:33,686 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:47:33,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:47:33,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:47:33,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:47:33,692 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:47:33,693 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:47:33,700 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:47:33,701 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:47:33,702 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:47:33,703 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:47:33,705 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:47:33,707 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:47:33,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:47:33,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:47:33,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:47:33,715 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 01:47:33,724 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:47:33,755 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:47:33,756 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:47:33,757 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:47:33,757 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:47:33,757 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:47:33,757 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:47:33,757 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:47:33,758 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:47:33,759 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:47:33,759 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:47:33,759 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:47:33,760 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:47:33,760 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:47:33,760 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:47:33,761 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:47:33,761 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:47:33,761 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:47:33,761 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:47:33,761 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:47:33,763 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:47:33,763 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:47:33,763 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:47:33,764 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:47:33,764 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:47:33,764 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:47:33,764 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:47:33,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:47:33,765 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:47:33,765 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:47:33,765 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:47:33,766 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:47:33,766 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:47:33,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:47:33,766 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:47:33,766 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:47:33,767 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:47:33,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:47:33,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:47:33,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:47:33,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:47:33,839 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:47:33,840 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label05_true-unreach-call.c [2018-10-25 01:47:33,902 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d529c1bb0/57359ed03c2b4ba1893080508c1259e6/FLAG52ecbc8ed [2018-10-25 01:47:34,579 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:47:34,582 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label05_true-unreach-call.c [2018-10-25 01:47:34,604 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d529c1bb0/57359ed03c2b4ba1893080508c1259e6/FLAG52ecbc8ed [2018-10-25 01:47:34,620 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d529c1bb0/57359ed03c2b4ba1893080508c1259e6 [2018-10-25 01:47:34,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:47:34,634 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:47:34,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:47:34,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:47:34,639 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:47:34,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:47:34" (1/1) ... [2018-10-25 01:47:34,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2874412b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:34, skipping insertion in model container [2018-10-25 01:47:34,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:47:34" (1/1) ... [2018-10-25 01:47:34,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:47:34,762 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:47:35,593 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:47:35,598 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:47:35,869 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:47:35,892 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:47:35,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35 WrapperNode [2018-10-25 01:47:35,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:47:35,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:47:35,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:47:35,894 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:47:35,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:35,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:47:36,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:47:36,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:47:36,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:47:36,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (1/1) ... [2018-10-25 01:47:36,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:47:36,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:47:36,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:47:36,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:47:36,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (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 [2018-10-25 01:47:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:47:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:47:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 01:47:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 01:47:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:47:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:47:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:47:36,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:47:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:47:36,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:47:43,680 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:47:43,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:47:43 BoogieIcfgContainer [2018-10-25 01:47:43,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:47:43,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:47:43,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:47:43,686 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:47:43,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:47:34" (1/3) ... [2018-10-25 01:47:43,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b62b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:47:43, skipping insertion in model container [2018-10-25 01:47:43,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:47:35" (2/3) ... [2018-10-25 01:47:43,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b62b140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:47:43, skipping insertion in model container [2018-10-25 01:47:43,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:47:43" (3/3) ... [2018-10-25 01:47:43,690 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label05_true-unreach-call.c [2018-10-25 01:47:43,701 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:47:43,710 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:47:43,729 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:47:43,769 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:47:43,769 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:47:43,769 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:47:43,769 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:47:43,769 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:47:43,770 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:47:43,770 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:47:43,770 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:47:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-25 01:47:43,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-25 01:47:43,818 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:47:43,819 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:47:43,822 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:47:43,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:47:43,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1575341511, now seen corresponding path program 1 times [2018-10-25 01:47:43,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:47:43,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:47:43,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:47:43,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:47:43,888 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:47:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:47:44,449 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-25 01:47:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:47:44,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:47:44,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:47:44,555 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:47:44,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:47:44,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:47:44,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:47:44,583 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-25 01:47:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:47:55,731 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-10-25 01:47:55,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:47:55,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2018-10-25 01:47:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:47:55,763 INFO L225 Difference]: With dead ends: 1514 [2018-10-25 01:47:55,763 INFO L226 Difference]: Without dead ends: 1070 [2018-10-25 01:47:55,775 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 [2018-10-25 01:47:55,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-10-25 01:47:55,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-10-25 01:47:55,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-25 01:47:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-10-25 01:47:55,944 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 71 [2018-10-25 01:47:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:47:55,945 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-10-25 01:47:55,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:47:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-10-25 01:47:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-25 01:47:55,954 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:47:55,955 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:47:55,955 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:47:55,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:47:55,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1668103027, now seen corresponding path program 1 times [2018-10-25 01:47:55,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:47:55,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:47:55,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:47:55,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:47:55,958 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:47:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:47:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:47:56,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:47:56,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:47:56,231 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:47:56,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:47:56,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:47:56,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:47:56,234 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 4 states. [2018-10-25 01:48:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:48:03,230 INFO L93 Difference]: Finished difference Result 3988 states and 6459 transitions. [2018-10-25 01:48:03,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:48:03,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2018-10-25 01:48:03,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:48:03,257 INFO L225 Difference]: With dead ends: 3988 [2018-10-25 01:48:03,258 INFO L226 Difference]: Without dead ends: 2926 [2018-10-25 01:48:03,269 INFO L605 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 [2018-10-25 01:48:03,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2018-10-25 01:48:03,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2613. [2018-10-25 01:48:03,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2613 states. [2018-10-25 01:48:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 3832 transitions. [2018-10-25 01:48:03,385 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 3832 transitions. Word has length 141 [2018-10-25 01:48:03,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:48:03,386 INFO L481 AbstractCegarLoop]: Abstraction has 2613 states and 3832 transitions. [2018-10-25 01:48:03,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:48:03,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 3832 transitions. [2018-10-25 01:48:03,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-10-25 01:48:03,406 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:48:03,406 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:48:03,406 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:48:03,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:48:03,410 INFO L82 PathProgramCache]: Analyzing trace with hash -473847581, now seen corresponding path program 1 times [2018-10-25 01:48:03,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:48:03,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:48:03,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:48:03,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:48:03,412 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:48:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:48:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 200 proven. 237 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-25 01:48:04,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:48:04,105 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:48:04,106 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 348 with the following transitions: [2018-10-25 01:48:04,108 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [541], [543], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-25 01:48:04,167 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:48:04,167 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:48:05,738 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:48:05,740 INFO L272 AbstractInterpreter]: Visited 109 different actions 314 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-25 01:48:05,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:48:05,784 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:48:07,530 INFO L232 lantSequenceWeakener]: Weakened 344 states. On average, predicates are now at 78.49% of their original sizes. [2018-10-25 01:48:07,530 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:48:09,313 INFO L413 sIntCurrentIteration]: We have 346 unified AI predicates [2018-10-25 01:48:09,314 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:48:09,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:48:09,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-10-25 01:48:09,315 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:48:09,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 01:48:09,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 01:48:09,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:48:09,317 INFO L87 Difference]: Start difference. First operand 2613 states and 3832 transitions. Second operand 9 states. [2018-10-25 01:49:34,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:49:34,487 INFO L93 Difference]: Finished difference Result 6162 states and 8750 transitions. [2018-10-25 01:49:34,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 01:49:34,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 347 [2018-10-25 01:49:34,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:49:34,509 INFO L225 Difference]: With dead ends: 6162 [2018-10-25 01:49:34,510 INFO L226 Difference]: Without dead ends: 3555 [2018-10-25 01:49:34,522 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 352 GetRequests, 280 SyntacticMatches, 59 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-10-25 01:49:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2018-10-25 01:49:34,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 3552. [2018-10-25 01:49:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3552 states. [2018-10-25 01:49:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 4831 transitions. [2018-10-25 01:49:34,617 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 4831 transitions. Word has length 347 [2018-10-25 01:49:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:49:34,618 INFO L481 AbstractCegarLoop]: Abstraction has 3552 states and 4831 transitions. [2018-10-25 01:49:34,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 01:49:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 4831 transitions. [2018-10-25 01:49:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2018-10-25 01:49:34,632 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:49:34,632 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:49:34,633 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:49:34,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:49:34,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1607000369, now seen corresponding path program 1 times [2018-10-25 01:49:34,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:49:34,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:49:34,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:49:34,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:49:34,635 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:49:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:49:35,530 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 226 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:49:35,532 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:49:35,532 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:49:35,532 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 447 with the following transitions: [2018-10-25 01:49:35,533 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [541], [543], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-25 01:49:35,556 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:49:35,556 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:49:37,569 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:49:37,570 INFO L272 AbstractInterpreter]: Visited 284 different actions 1128 times. Merged at 7 different actions 27 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-25 01:49:37,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:49:37,587 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:49:37,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:49:37,587 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 [2018-10-25 01:49:37,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:49:37,596 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:49:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:49:37,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:49:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 226 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:49:38,327 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:49:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 226 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:49:38,783 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:49:38,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-25 01:49:38,784 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:49:38,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 01:49:38,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 01:49:38,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-10-25 01:49:38,786 INFO L87 Difference]: Start difference. First operand 3552 states and 4831 transitions. Second operand 9 states. [2018-10-25 01:49:51,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:49:51,780 INFO L93 Difference]: Finished difference Result 8183 states and 12318 transitions. [2018-10-25 01:49:51,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-25 01:49:51,781 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 446 [2018-10-25 01:49:51,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:49:51,827 INFO L225 Difference]: With dead ends: 8183 [2018-10-25 01:49:51,827 INFO L226 Difference]: Without dead ends: 5576 [2018-10-25 01:49:51,861 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 919 GetRequests, 895 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-25 01:49:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5576 states. [2018-10-25 01:49:52,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5576 to 5562. [2018-10-25 01:49:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5562 states. [2018-10-25 01:49:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 7274 transitions. [2018-10-25 01:49:52,037 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 7274 transitions. Word has length 446 [2018-10-25 01:49:52,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:49:52,038 INFO L481 AbstractCegarLoop]: Abstraction has 5562 states and 7274 transitions. [2018-10-25 01:49:52,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 01:49:52,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 7274 transitions. [2018-10-25 01:49:52,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2018-10-25 01:49:52,057 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:49:52,058 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-25 01:49:52,058 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:49:52,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:49:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1108181070, now seen corresponding path program 1 times [2018-10-25 01:49:52,059 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:49:52,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:49:52,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:49:52,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:49:52,060 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:49:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:49:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 389 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-25 01:49:52,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:49:52,585 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:49:52,586 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 469 with the following transitions: [2018-10-25 01:49:52,586 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [541], [543], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-25 01:49:52,594 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:49:52,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:49:57,834 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:49:57,835 INFO L272 AbstractInterpreter]: Visited 211 different actions 1045 times. Merged at 8 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-25 01:49:57,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:49:57,864 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:49:57,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:49:57,864 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:49:57,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:49:57,879 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:49:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:49:58,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:49:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 389 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-25 01:49:58,536 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:49:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 389 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-25 01:49:59,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:49:59,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-25 01:49:59,640 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:49:59,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 01:49:59,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 01:49:59,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-25 01:49:59,642 INFO L87 Difference]: Start difference. First operand 5562 states and 7274 transitions. Second operand 9 states. [2018-10-25 01:50:08,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:50:08,948 INFO L93 Difference]: Finished difference Result 12221 states and 18382 transitions. [2018-10-25 01:50:08,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-25 01:50:08,955 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 468 [2018-10-25 01:50:08,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:50:09,012 INFO L225 Difference]: With dead ends: 12221 [2018-10-25 01:50:09,012 INFO L226 Difference]: Without dead ends: 7606 [2018-10-25 01:50:09,089 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 963 GetRequests, 942 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2018-10-25 01:50:09,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7606 states. [2018-10-25 01:50:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7606 to 7573. [2018-10-25 01:50:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7573 states. [2018-10-25 01:50:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7573 states to 7573 states and 10142 transitions. [2018-10-25 01:50:09,371 INFO L78 Accepts]: Start accepts. Automaton has 7573 states and 10142 transitions. Word has length 468 [2018-10-25 01:50:09,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:50:09,373 INFO L481 AbstractCegarLoop]: Abstraction has 7573 states and 10142 transitions. [2018-10-25 01:50:09,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 01:50:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 7573 states and 10142 transitions. [2018-10-25 01:50:09,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2018-10-25 01:50:09,393 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:50:09,393 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:50:09,394 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:50:09,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:50:09,394 INFO L82 PathProgramCache]: Analyzing trace with hash 234459514, now seen corresponding path program 1 times [2018-10-25 01:50:09,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:50:09,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:09,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:50:09,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:09,396 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:50:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:50:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 416 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-25 01:50:10,243 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:50:10,243 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:50:10,244 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 498 with the following transitions: [2018-10-25 01:50:10,244 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [541], [543], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [857], [862], [864], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-25 01:50:10,249 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:50:10,249 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:50:11,360 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:50:11,360 INFO L272 AbstractInterpreter]: Visited 211 different actions 831 times. Merged at 7 different actions 23 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-25 01:50:11,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:50:11,386 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:50:11,386 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:50:11,386 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:50:11,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:50:11,402 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:50:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:50:11,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:50:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2018-10-25 01:50:12,119 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:50:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2018-10-25 01:50:13,298 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:50:13,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 12 [2018-10-25 01:50:13,299 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:50:13,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 01:50:13,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 01:50:13,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-10-25 01:50:13,301 INFO L87 Difference]: Start difference. First operand 7573 states and 10142 transitions. Second operand 5 states. [2018-10-25 01:50:18,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:50:18,098 INFO L93 Difference]: Finished difference Result 20274 states and 30300 transitions. [2018-10-25 01:50:18,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:50:18,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 497 [2018-10-25 01:50:18,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:50:18,227 INFO L225 Difference]: With dead ends: 20274 [2018-10-25 01:50:18,228 INFO L226 Difference]: Without dead ends: 13648 [2018-10-25 01:50:18,278 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1000 GetRequests, 987 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-10-25 01:50:18,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13648 states. [2018-10-25 01:50:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13648 to 13464. [2018-10-25 01:50:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13464 states. [2018-10-25 01:50:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13464 states to 13464 states and 18185 transitions. [2018-10-25 01:50:18,790 INFO L78 Accepts]: Start accepts. Automaton has 13464 states and 18185 transitions. Word has length 497 [2018-10-25 01:50:18,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:50:18,791 INFO L481 AbstractCegarLoop]: Abstraction has 13464 states and 18185 transitions. [2018-10-25 01:50:18,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 01:50:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 13464 states and 18185 transitions. [2018-10-25 01:50:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2018-10-25 01:50:18,825 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:50:18,825 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-25 01:50:18,826 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:50:18,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:50:18,826 INFO L82 PathProgramCache]: Analyzing trace with hash 66595550, now seen corresponding path program 1 times [2018-10-25 01:50:18,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:50:18,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:18,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:50:18,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:18,828 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:50:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:50:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-10-25 01:50:19,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:50:19,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:50:19,453 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:50:19,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:50:19,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:50:19,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:50:19,455 INFO L87 Difference]: Start difference. First operand 13464 states and 18185 transitions. Second operand 3 states. [2018-10-25 01:50:23,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:50:23,245 INFO L93 Difference]: Finished difference Result 29498 states and 43099 transitions. [2018-10-25 01:50:23,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:50:23,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 587 [2018-10-25 01:50:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:50:23,353 INFO L225 Difference]: With dead ends: 29498 [2018-10-25 01:50:23,353 INFO L226 Difference]: Without dead ends: 16981 [2018-10-25 01:50:23,443 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:50:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16981 states. [2018-10-25 01:50:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16981 to 16979. [2018-10-25 01:50:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16979 states. [2018-10-25 01:50:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16979 states to 16979 states and 23682 transitions. [2018-10-25 01:50:23,956 INFO L78 Accepts]: Start accepts. Automaton has 16979 states and 23682 transitions. Word has length 587 [2018-10-25 01:50:23,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:50:23,958 INFO L481 AbstractCegarLoop]: Abstraction has 16979 states and 23682 transitions. [2018-10-25 01:50:23,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:50:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 16979 states and 23682 transitions. [2018-10-25 01:50:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2018-10-25 01:50:23,994 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:50:23,995 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:50:23,995 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:50:23,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:50:23,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1381023486, now seen corresponding path program 1 times [2018-10-25 01:50:23,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:50:23,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:23,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:50:23,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:23,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:50:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:50:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 705 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2018-10-25 01:50:25,167 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:50:25,167 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:50:25,167 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 677 with the following transitions: [2018-10-25 01:50:25,168 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [541], [543], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [718], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [842], [847], [849], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-25 01:50:25,172 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:50:25,172 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:50:27,516 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:50:27,516 INFO L272 AbstractInterpreter]: Visited 215 different actions 1287 times. Merged at 10 different actions 61 times. Widened at 1 different actions 2 times. Found 13 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-25 01:50:27,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:50:27,524 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:50:27,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:50:27,524 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:50:27,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:50:27,534 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:50:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:50:27,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:50:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 705 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2018-10-25 01:50:28,235 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:50:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 705 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2018-10-25 01:50:28,708 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:50:28,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-10-25 01:50:28,709 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:50:28,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-25 01:50:28,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-25 01:50:28,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-25 01:50:28,711 INFO L87 Difference]: Start difference. First operand 16979 states and 23682 transitions. Second operand 7 states. [2018-10-25 01:50:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:50:41,885 INFO L93 Difference]: Finished difference Result 44812 states and 65779 transitions. [2018-10-25 01:50:41,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-25 01:50:41,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 676 [2018-10-25 01:50:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:50:42,085 INFO L225 Difference]: With dead ends: 44812 [2018-10-25 01:50:42,085 INFO L226 Difference]: Without dead ends: 28147 [2018-10-25 01:50:42,244 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1367 GetRequests, 1353 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2018-10-25 01:50:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28147 states. [2018-10-25 01:50:42,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28147 to 28039. [2018-10-25 01:50:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28039 states. [2018-10-25 01:50:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28039 states to 28039 states and 37726 transitions. [2018-10-25 01:50:43,152 INFO L78 Accepts]: Start accepts. Automaton has 28039 states and 37726 transitions. Word has length 676 [2018-10-25 01:50:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:50:43,153 INFO L481 AbstractCegarLoop]: Abstraction has 28039 states and 37726 transitions. [2018-10-25 01:50:43,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-25 01:50:43,154 INFO L276 IsEmpty]: Start isEmpty. Operand 28039 states and 37726 transitions. [2018-10-25 01:50:43,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2018-10-25 01:50:43,216 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:50:43,217 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-25 01:50:43,217 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:50:43,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:50:43,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1191078980, now seen corresponding path program 1 times [2018-10-25 01:50:43,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:50:43,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:43,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:50:43,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:50:43,219 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:50:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:50:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 272 proven. 2 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2018-10-25 01:50:44,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:50:44,164 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:50:44,165 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 689 with the following transitions: [2018-10-25 01:50:44,165 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [541], [543], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [718], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [857], [860], [864], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-25 01:50:44,171 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:50:44,171 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:50:59,181 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:50:59,181 INFO L272 AbstractInterpreter]: Visited 288 different actions 866 times. Merged at 9 different actions 30 times. Widened at 1 different actions 1 times. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-25 01:50:59,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:50:59,189 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:50:59,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:50:59,189 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:50:59,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:50:59,197 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:50:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:50:59,399 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:50:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2018-10-25 01:50:59,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:50:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 272 proven. 2 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2018-10-25 01:50:59,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-25 01:50:59,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-10-25 01:50:59,996 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:50:59,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:50:59,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:50:59,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:50:59,997 INFO L87 Difference]: Start difference. First operand 28039 states and 37726 transitions. Second operand 3 states. [2018-10-25 01:51:02,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:51:02,932 INFO L93 Difference]: Finished difference Result 54570 states and 73967 transitions. [2018-10-25 01:51:02,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:51:02,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 688 [2018-10-25 01:51:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:51:03,087 INFO L225 Difference]: With dead ends: 54570 [2018-10-25 01:51:03,087 INFO L226 Difference]: Without dead ends: 28353 [2018-10-25 01:51:03,234 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1378 GetRequests, 1376 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:51:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28353 states. [2018-10-25 01:51:03,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28353 to 28035. [2018-10-25 01:51:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28035 states. [2018-10-25 01:51:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28035 states to 28035 states and 37678 transitions. [2018-10-25 01:51:03,967 INFO L78 Accepts]: Start accepts. Automaton has 28035 states and 37678 transitions. Word has length 688 [2018-10-25 01:51:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:51:03,967 INFO L481 AbstractCegarLoop]: Abstraction has 28035 states and 37678 transitions. [2018-10-25 01:51:03,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:51:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 28035 states and 37678 transitions. [2018-10-25 01:51:04,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2018-10-25 01:51:04,048 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:51:04,049 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:51:04,049 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:51:04,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:51:04,050 INFO L82 PathProgramCache]: Analyzing trace with hash -16273097, now seen corresponding path program 1 times [2018-10-25 01:51:04,050 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:51:04,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:51:04,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:51:04,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:51:04,051 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:51:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:51:05,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 706 proven. 2 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2018-10-25 01:51:05,138 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:51:05,138 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:51:05,138 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 720 with the following transitions: [2018-10-25 01:51:05,139 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [541], [543], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [718], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1060], [1061], [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], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-25 01:51:05,142 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:51:05,142 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:51:06,643 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:51:06,643 INFO L272 AbstractInterpreter]: Visited 213 different actions 1069 times. Merged at 10 different actions 51 times. Widened at 1 different actions 6 times. Found 10 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-25 01:51:06,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:51:06,650 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:51:06,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:51:06,650 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:51:06,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:51:06,659 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:51:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:51:06,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:51:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 706 proven. 2 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2018-10-25 01:51:07,155 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:51:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 706 proven. 2 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2018-10-25 01:51:07,799 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:51:07,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-25 01:51:07,799 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:51:07,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 01:51:07,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 01:51:07,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-25 01:51:07,803 INFO L87 Difference]: Start difference. First operand 28035 states and 37678 transitions. Second operand 9 states. [2018-10-25 01:51:14,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:51:14,797 INFO L93 Difference]: Finished difference Result 57757 states and 81218 transitions. [2018-10-25 01:51:14,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 01:51:14,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 719 [2018-10-25 01:51:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:51:14,975 INFO L225 Difference]: With dead ends: 57757 [2018-10-25 01:51:14,975 INFO L226 Difference]: Without dead ends: 31544 [2018-10-25 01:51:15,142 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1457 GetRequests, 1440 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2018-10-25 01:51:15,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31544 states. [2018-10-25 01:51:15,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31544 to 31513. [2018-10-25 01:51:15,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31513 states. Received shutdown request... [2018-10-25 01:51:15,793 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 01:51:15,799 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 01:51:15,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 01:51:15 BoogieIcfgContainer [2018-10-25 01:51:15,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 01:51:15,801 INFO L168 Benchmark]: Toolchain (without parser) took 221167.98 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -378.6 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-25 01:51:15,802 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. [2018-10-25 01:51:15,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1258.53 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:51:15,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 386.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -894.0 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-25 01:51:15,804 INFO L168 Benchmark]: Boogie Preprocessor took 205.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-25 01:51:15,805 INFO L168 Benchmark]: RCFGBuilder took 7194.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 320.7 MB). Peak memory consumption was 320.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:51:15,805 INFO L168 Benchmark]: TraceAbstraction took 212117.70 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 75.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-25 01:51:15,812 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 1258.53 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 386.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 775.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -894.0 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 205.53 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7194.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 320.7 MB). Peak memory consumption was 320.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212117.70 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 75.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 199]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 199). Cancelled while ReachableStatesComputation was computing reachable states (20868 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 212.0s OverallTime, 10 OverallIterations, 6 TraceHistogramMax, 159.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2666 SDtfs, 14514 SDslu, 2684 SDs, 0 SdLazy, 27068 SolverSat, 6385 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 128.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 7452 GetRequests, 7283 SyntacticMatches, 70 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28039occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 29.0s AbstIntTime, 7 AbstIntIterations, 1 AbstIntStrong, 0.9969361461983917 AbsIntWeakeningRatio, 0.09248554913294797 AbsIntAvgWeakeningVarsNumRemoved, 0.6878612716763006 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 977 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 8134 NumberOfCodeBlocks, 8134 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 11606 ConstructedInterpolants, 0 QuantifiedInterpolants, 13600188 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4963 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 14861/15128 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown