java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:03:03,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:03:03,604 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:03:03,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:03:03,625 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:03:03,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:03:03,628 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:03:03,630 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:03:03,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:03:03,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:03:03,633 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:03:03,634 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:03:03,635 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:03:03,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:03:03,637 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:03:03,638 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:03:03,639 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:03:03,640 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:03:03,642 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:03:03,644 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:03:03,645 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:03:03,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:03:03,652 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:03:03,653 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:03:03,653 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:03:03,658 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:03:03,661 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:03:03,662 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:03:03,663 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:03:03,666 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:03:03,666 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:03:03,668 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:03:03,668 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:03:03,669 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:03:03,670 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:03:03,671 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:03:03,671 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 03:03:03,699 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:03:03,700 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:03:03,701 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:03:03,701 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:03:03,701 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:03:03,701 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:03:03,702 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:03:03,702 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:03:03,702 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:03:03,702 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:03:03,702 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:03:03,703 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:03:03,703 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:03:03,704 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:03:03,704 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:03:03,704 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:03:03,704 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:03:03,704 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:03:03,705 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:03:03,705 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:03:03,705 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:03:03,705 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:03:03,705 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:03:03,706 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:03:03,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:03:03,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:03:03,706 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:03:03,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:03:03,707 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:03:03,707 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:03:03,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:03:03,707 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:03:03,707 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:03:03,708 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:03:03,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:03:03,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:03:03,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:03:03,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:03:03,801 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:03:03,803 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-10-27 03:03:03,875 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bf74f43b7/59e9c8cd85e444f5932bd191c400fb02/FLAG1e0de2731 [2018-10-27 03:03:04,509 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:03:04,510 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label23_true-unreach-call_false-termination.c [2018-10-27 03:03:04,524 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bf74f43b7/59e9c8cd85e444f5932bd191c400fb02/FLAG1e0de2731 [2018-10-27 03:03:04,555 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bf74f43b7/59e9c8cd85e444f5932bd191c400fb02 [2018-10-27 03:03:04,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:03:04,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:03:04,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:03:04,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:03:04,577 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:03:04,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:03:04" (1/1) ... [2018-10-27 03:03:04,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46dcfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:04, skipping insertion in model container [2018-10-27 03:03:04,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:03:04" (1/1) ... [2018-10-27 03:03:04,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:03:04,677 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:03:05,269 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:03:05,274 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:03:05,411 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:03:05,430 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:03:05,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05 WrapperNode [2018-10-27 03:03:05,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:03:05,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:03:05,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:03:05,432 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:03:05,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:03:05,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:03:05,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:03:05,677 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:03:05,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... [2018-10-27 03:03:05,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:03:05,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:03:05,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:03:05,793 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:03:05,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:03:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:03:05,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:03:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:03:05,882 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:03:05,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:03:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:03:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:03:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:03:09,757 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:03:09,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:03:09 BoogieIcfgContainer [2018-10-27 03:03:09,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:03:09,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:03:09,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:03:09,764 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:03:09,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:03:04" (1/3) ... [2018-10-27 03:03:09,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7bc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:03:09, skipping insertion in model container [2018-10-27 03:03:09,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:03:05" (2/3) ... [2018-10-27 03:03:09,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7bc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:03:09, skipping insertion in model container [2018-10-27 03:03:09,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:03:09" (3/3) ... [2018-10-27 03:03:09,768 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label23_true-unreach-call_false-termination.c [2018-10-27 03:03:09,778 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:03:09,788 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:03:09,806 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:03:09,847 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:03:09,847 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:03:09,847 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:03:09,848 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:03:09,848 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:03:09,848 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:03:09,848 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:03:09,848 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:03:09,876 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-27 03:03:09,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 03:03:09,884 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:03:09,886 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] [2018-10-27 03:03:09,888 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:03:09,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:03:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1395557711, now seen corresponding path program 1 times [2018-10-27 03:03:09,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:03:09,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:09,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:03:09,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:09,954 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:03:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:03:10,322 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 03:03:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:03:10,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:03:10,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 03:03:10,438 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:03:10,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 03:03:10,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 03:03:10,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:03:10,467 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-27 03:03:12,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:03:12,417 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-27 03:03:12,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 03:03:12,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-10-27 03:03:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:03:12,441 INFO L225 Difference]: With dead ends: 691 [2018-10-27 03:03:12,441 INFO L226 Difference]: Without dead ends: 434 [2018-10-27 03:03:12,455 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 03:03:12,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-27 03:03:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-27 03:03:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-27 03:03:12,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-27 03:03:12,545 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 39 [2018-10-27 03:03:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:03:12,546 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-27 03:03:12,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 03:03:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-27 03:03:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-27 03:03:12,554 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:03:12,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:03:12,558 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:03:12,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:03:12,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1621257519, now seen corresponding path program 1 times [2018-10-27 03:03:12,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:03:12,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:12,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:03:12,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:12,562 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:03:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:03:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:03:12,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:03:12,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:03:12,887 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:03:12,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:03:12,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:03:12,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:03:12,890 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-27 03:03:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:03:15,452 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-10-27 03:03:15,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:03:15,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-10-27 03:03:15,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:03:15,462 INFO L225 Difference]: With dead ends: 1062 [2018-10-27 03:03:15,463 INFO L226 Difference]: Without dead ends: 634 [2018-10-27 03:03:15,465 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 03:03:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-10-27 03:03:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-10-27 03:03:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-10-27 03:03:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-10-27 03:03:15,507 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 114 [2018-10-27 03:03:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:03:15,508 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-10-27 03:03:15,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:03:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-10-27 03:03:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-27 03:03:15,512 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:03:15,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:03:15,512 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:03:15,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:03:15,513 INFO L82 PathProgramCache]: Analyzing trace with hash -985362584, now seen corresponding path program 1 times [2018-10-27 03:03:15,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:03:15,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:15,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:03:15,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:15,515 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:03:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:03:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:03:15,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:03:15,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:03:15,986 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:03:15,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:03:15,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:03:15,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:03:15,990 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 6 states. [2018-10-27 03:03:21,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:03:21,210 INFO L93 Difference]: Finished difference Result 1819 states and 2988 transitions. [2018-10-27 03:03:21,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 03:03:21,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-10-27 03:03:21,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:03:21,223 INFO L225 Difference]: With dead ends: 1819 [2018-10-27 03:03:21,223 INFO L226 Difference]: Without dead ends: 1200 [2018-10-27 03:03:21,230 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:03:21,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2018-10-27 03:03:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1140. [2018-10-27 03:03:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2018-10-27 03:03:21,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1733 transitions. [2018-10-27 03:03:21,293 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1733 transitions. Word has length 123 [2018-10-27 03:03:21,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:03:21,294 INFO L481 AbstractCegarLoop]: Abstraction has 1140 states and 1733 transitions. [2018-10-27 03:03:21,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:03:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1733 transitions. [2018-10-27 03:03:21,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-27 03:03:21,312 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:03:21,312 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:03:21,312 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:03:21,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:03:21,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1921964902, now seen corresponding path program 1 times [2018-10-27 03:03:21,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:03:21,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:21,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:03:21,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:03:21,315 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:03:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:03:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:03:22,150 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:03:22,150 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:03:22,151 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-10-27 03:03:22,153 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 03:03:22,222 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:03:22,223 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:03:25,395 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:03:25,396 INFO L272 AbstractInterpreter]: Visited 93 different actions 179 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 03:03:25,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:03:25,412 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:03:28,042 INFO L227 lantSequenceWeakener]: Weakened 77 states. On average, predicates are now at 79.3% of their original sizes. [2018-10-27 03:03:28,043 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:03:50,068 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-10-27 03:03:50,068 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:03:50,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:03:50,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [12] total 35 [2018-10-27 03:03:50,070 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:03:50,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-27 03:03:50,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-27 03:03:50,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2018-10-27 03:03:50,072 INFO L87 Difference]: Start difference. First operand 1140 states and 1733 transitions. Second operand 25 states. [2018-10-27 03:04:58,063 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:06:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:06:44,441 INFO L93 Difference]: Finished difference Result 3354 states and 5084 transitions. [2018-10-27 03:06:44,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-27 03:06:44,441 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 208 [2018-10-27 03:06:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:06:44,453 INFO L225 Difference]: With dead ends: 3354 [2018-10-27 03:06:44,453 INFO L226 Difference]: Without dead ends: 2220 [2018-10-27 03:06:44,459 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 164 SyntacticMatches, 20 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=308, Invalid=1498, Unknown=0, NotChecked=0, Total=1806 [2018-10-27 03:06:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-10-27 03:06:44,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2216. [2018-10-27 03:06:44,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2018-10-27 03:06:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 2851 transitions. [2018-10-27 03:06:44,630 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 2851 transitions. Word has length 208 [2018-10-27 03:06:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:06:44,631 INFO L481 AbstractCegarLoop]: Abstraction has 2216 states and 2851 transitions. [2018-10-27 03:06:44,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-27 03:06:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 2851 transitions. [2018-10-27 03:06:44,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-10-27 03:06:44,640 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:06:44,641 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:06:44,641 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:06:44,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:06:44,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1895724036, now seen corresponding path program 1 times [2018-10-27 03:06:44,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:06:44,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:06:44,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:06:44,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:06:44,646 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:06:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:06:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 184 proven. 83 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-27 03:06:45,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:06:45,318 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:06:45,318 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 320 with the following transitions: [2018-10-27 03:06:45,319 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-27 03:06:45,330 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:06:45,330 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:06:54,040 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:06:54,040 INFO L272 AbstractInterpreter]: Visited 120 different actions 355 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-27 03:06:54,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:06:54,049 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:06:56,680 INFO L227 lantSequenceWeakener]: Weakened 21 states. On average, predicates are now at 78.57% of their original sizes. [2018-10-27 03:06:56,681 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-27 03:06:58,127 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:06:58,134 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:06:58,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:06:58 BoogieIcfgContainer [2018-10-27 03:06:58,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:06:58,140 INFO L168 Benchmark]: Toolchain (without parser) took 233569.84 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.4 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-27 03:06:58,141 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 03:06:58,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 858.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-27 03:06:58,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 245.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -830.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:06:58,147 INFO L168 Benchmark]: Boogie Preprocessor took 115.75 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. [2018-10-27 03:06:58,152 INFO L168 Benchmark]: RCFGBuilder took 3965.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 130.2 MB). Peak memory consumption was 130.2 MB. Max. memory is 7.1 GB. [2018-10-27 03:06:58,153 INFO L168 Benchmark]: TraceAbstraction took 228374.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-27 03:06:58,165 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 858.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 245.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -830.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.75 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 3965.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 130.2 MB). Peak memory consumption was 130.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228374.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 100). Cancelled while BasicCegarLoop was analyzing trace of length 320 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 228.2s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 184.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 522 SDtfs, 4950 SDslu, 500 SDs, 0 SdLazy, 7906 SolverSat, 1293 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 252 GetRequests, 170 SyntacticMatches, 25 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 27.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2216occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9950207039337476 AbsIntWeakeningRatio, 0.11047619047619048 AbsIntAvgWeakeningVarsNumRemoved, 549.52 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 73 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 484 NumberOfCodeBlocks, 484 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 998656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 210/212 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown